Lock.



PATENTED APR., 26 1904.

v. B. KEER. l

,'LocK.

, UNITED STATES? Patented April 26, 1904.

v PATENT OFFICE. ,y f

VALENTINE B. KERR,4 oEYMILTOINQPENNSYLVANIA, AssIGNoRoEoN-E- HALE To wEsT BRANCH NOVELTY ooMPANY,-oE MILTON, RENN- SYLVANIA.-

LOCK.

SPECIFICATION forming part of 'Letters PatentNo. 758,452, dated April 26, 1904. Y

Application led February 8,1904. Serial No. 192,627. (No-model.)

.To all whom t WMI/y concern,.-

Be it known that I, VALENTINE B. KERR, a citizen of the United States, residing atMilton,

in the county of Northumberland and State of- Itis the object of the invention to make a' most efficient lock from the fewest possible parts that shall be at the same time simple in construction and economic of manufacture.

It is also the object of the invention to provide improvements in a lock whereby it can be inserted or placed in position without the use of any special tools or machinery, a simple auger-bit being all that is necessary for the purpose, and so, too, that it shall be entirely concealed when in place.

The invention consists of the improvements in the parts and combination of parts hereinafter fully vset forth, and pointed out in the annexed claim.

The accompanying drawings and numerals of reference designate similar parts or fea-Y tures wherever they occur.

. Of the drawings, Figure 1 is a side elevation of the improved lock complete and in the position in which it may appear in the drawer or a cabinet. Fig. 2 is a plan view of a blank or struck-up piece of metal which forms the complete housing for the bolt, its guides, the

guide for the spring, and the support for the key-pin. Fig. 3 is a diagram showing the first step of one way in which the process may proceed in forming the housing. Fig. 4 shows a second and nal step of the process before mentioned of shaping the housing. Fig. 5 is a longitudinal sectional elevation of the completed invention. Fig. 6 is a similar view to Fig. 1, showing the housing formed without a front plate.

In the said drawings, 1 designates the blank` of which the part 1 forms the front plate and part 2 the back plate when the blank is bent or formed as shown in Fig. 3, while the intermediate part 3 between the front and rear plates forms a guideway for the bolt 4 and its spring 5 and locking tab or nib 10.

6 forms the face-plate, having the guideslot 7 l formed-therein for the outer end of the bolt 4, while the parts 8 yand 9 form the side pieces connecting the face-plate with the front and back plates. The nib 10 on the -intermediate part 3 enters the hole or slot 11 on the end of side part 9 and is bent down and rivets the whole structure constituting the housing.

It is particularly to be noted that the housing of the lock tapers about one thirty-second of an inch 'from the outer to the inner end, so that it can readily be driven into amere augerhole, which it may fit tightly, so as to hold it in place, as shown in Fig. 1. A suitable hole may be made in the material intersecting the auger-hole for the reception of the key for operating the bolt. y

The numeral 12 designates the key-pin.

An escutcheon 13 may be fastened on the face of the drawer 14 coincident with the position of the key-pin 12.

By making the housing from one piece of metal the parts can be held with certainty in their proper relative positions when the lock is driven to place in the hole formed for it inthe drawer or other article, which could not be depended upon if it were formed of several pieces. There being but four pieces in the complete lock, it is to be also noted that it is not only rendered very simple in its constructionl, but is made quite strong and durable as wel As indicated in Fig. 4, the invention is capable of modification in form and arrangement of parts without departing from its nature or spirit. In said last-mentioned figure the front plate is omitted, and the intermediate part 3 and one of the side plates are joined,.as at 15.

It is also to be noted that the invention has been worked out on that class of spring-locks in which the inner side of the bolt is provided with a notch or notches 16, connected with a curved part. The spring 5, acting upon the` bolt, presses the notch into engagement with the rim of the inner guide-slot 7 and holds the' bolt in place frctionally until released by a key or similar4 device and pressed back into another notch or against some form of stop. In the present case the key-pin constitutes the back-stop. By the construction mentioned space is economized, which is important, since the invention is contemplated to be employed on thin stock, and for the same reason the inner end of the locking-bolt is kept Within the housing.

What I claim is- A lock having a housing consisting of a single piece of metal a portion of which is bent into rectangular form to constitute the outer half of the housing, a guide-slot being formed in the outer end or face-plate and also in the inner part, and the inner portion of the housing being formed from the said piece of metal bent inwardly parallel with the direction of said guide-slots and provided with a key-pin, the Whole being tapered in form, combined with a locking-bolt passed through said guiding-slots and provided with a notch and spring which are acted upon by the inner edges or rim of the metal in which the inner guide-slot is formed.

In testimony WhereofIhave signed my name to this specification in presence of two wit- 30 nesses.

VALENTINE B. KERR.

Witnesses:

CLARENCE F. BALLIET, FEED. PIPER. 

